I've been taking my bbt for almost a full cycle, in the dreaded 2ww. That being said could anyone…

I've been taking my bbt for almost a full cycle, in the dreaded 2ww. That being said could anyone with more experience than me explain what's going on? I've taken people's advice and do it in bed before getting up in the morning, I try to do it roughly the same time everyday (when my hubby is in the bathroom getting ready for work). Thanks people!